Improvement in treating shellac



' v ww 1 -A.` ZINSSER.

` Treating Shellac. il No. 108,550. Patented Oct. 18, 18740. y

N.VFETERS, FHDTO-LITHOGRAPMER. WASHXNGTON D C tnteil @Straten @tutti @tilt-ite. f

AUGUST ZINSSER, 0F NEW YORK, N. Y.

v Letters Patent No. 108,550, dated October 18, 1870.

More- IMPROVEMENT IN TREATING SHELLAC.

'lhe Schedule referred' to in these Letters Patent and making part of the` same.

To all whom. it may concern:

Beit known that I, AUGUST Zrsssuu, of the city,

county, and State of New York, haveinvented a new .part of this specification, in which drawing- Figure l represents a plan or top View ofthe apparatus which I use in carrying out my invention.

Figure 2 is al longitudinal vertical section thereof.

Similar letters indicate corresponding parts.

This invention consists in treating shellac, either bleached or unbleached, 4iby irst softening the same by hot water, steam, or other means, and then passing the same through between a succession of rollers ot' gradually decreasing size, in such a manner that the sheilac is quickly and, readily formed into bars of the required shape, and the laborious operation of lnalaxating shellac, which is usually carried on hy hand, is materially simplitied.

The ordinary operation of malaxating shellac, or the process of reducing sbellac to the shape or form in which the same is sold iu the market, is usually carried ou as follows:

p lhe'shellac is softened in hot water, and then it is taken out and crutched or squeezed by hand, and linally drawn out to form thin long sticks, which are curled up into rolls or bundles, ready for the market.

Instead ofcrutohing orsqueezing the softened shel-V lac by hand, I use a series of rollers, A, of gradually decreasing size, and as the shellac is successively passed through between said rolle-rs, it is gradually squeezed and drawn out into sticks of the required size.

The rollers are geared together so that they revolve Vin opposite directions, and it is obvious that said rollers may be formed to produce round, polygonal, dat, or square sticks, or, in fact, stick-s of any desired form or shape.

With the rollers A' may be combined hoppers or funnels B, which serve to conduct the shellac in between the rollers, and prevent the same from get-ting in between the fiat side flanges A. of the rollers, which would have a-tendency to injure the mechanism or stop the motion of the apparatus.

That I claim as new, and desire to secure by Let-- ters Patent, is-

lhe within-described process of treating or malaxating shellac, by lirst softening the saine in het water, or otherwise, and then passing it through between' rollers, substantially as set fort-h.

This specification signed by me this 23d day of September, 1870.

KV. HAUFF,

F. KAsTENnUBnu.

AUGUST ZINSSER. 

